CAJ | 학술논문

采用醋酸锌和六亚甲基四胺为源,95℃下在生长 ZnO 籽晶的玻璃衬底上生长了大面积分布均匀的 ZnO 纳米棒阵列.用 X射线衍射仪、扫描电镜和光谱仪分析了纳米棒的结构、形貌和光学性质,研究了溶液中 Zn2+的浓度及其与六亚甲基四胺的相对比例对纳米棒性能的影响.结果表明,纳米棒的尺寸和性能对溶液中 Zn2+离子和六亚甲基四胺的浓度及相对比例非常敏感,通过调制他们的浓度与比例可以有效地调制纳米棒的尺寸与性能.当 Zn2+与六亚甲基四胺的比例一定时,增大 Zn2+的浓度促进纳米棒的择优生长；在一定的 Zn2+浓度的溶液中,增大六亚甲基四胺的浓度, ZnO纳米棒的长度和直径都随之增大,ZnO纳米棒有非常良好的c轴择优取向,趋向于沿垂直于衬底的方向生长,同时纳米棒的紫外荧光增强,可见区荧光减弱.350℃下退火20 min后,纳米棒阵列的紫外荧光减弱.
채용작산자화륙아갑기사알위원,95℃하재생장 ZnO 자정적파리츤저상생장료대면적분포균균적 ZnO 납미봉진렬.용 X사선연사의、소묘전경화광보의분석료납미봉적결구、형모화광학성질,연구료용액중 Zn2+적농도급기여륙아갑기사알적상대비례대납미봉성능적영향.결과표명,납미봉적척촌화성능대용액중 Zn2+리자화륙아갑기사알적농도급상대비례비상민감,통과조제타문적농도여비례가이유효지조제납미봉적척촌여성능.당 Zn2+여륙아갑기사알적비례일정시,증대 Zn2+적농도촉진납미봉적택우생장；재일정적 Zn2+농도적용액중,증대륙아갑기사알적농도, ZnO납미봉적장도화직경도수지증대,ZnO납미봉유비상량호적c축택우취향,추향우연수직우츤저적방향생장,동시납미봉적자외형광증강,가견구형광감약.350℃하퇴화20 min후,납미봉진렬적자외형광감약.
ZnO nanorod arrays were grown on the glass substrates using solution method with hexamethylenetetramine (HMTA)and zinc acetate at 95 ℃.The nanorods properties were characterized by X-ray diffraction,scanning electron microscope and spectrometer.Effects of Zn2+ concentration and Zn2+ to HMTA ratio on the properties of the nanorods were studied.The nanorod size and properties are very sensitive to Zn2+ concentration and Zn2+ to HMTA ratio.Increasing in Zn2+ concentration promotes preferential growth along c axis.And increasing in HMTA to Zn2+ ratio increases nanorod diameter and length.The nanrods have strong UV emission and weak visible emission.Annealing at 350 ℃ weakens UV emission of the nanorods.